1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a60d8bff4bc364e3434f5950113af018d77c9455bf65ff0081d593cfe4142e9. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39455c49-6ed2-4ffd-8a5f-40faac8be452.json and https://artists.proofprofile.net/proofs/artist/39455c49-6ed2-4ffd-8a5f-40faac8be452.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Song You'll Never Hear (feat. Maisie Peters)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac99a9e921be94a8d912e4d6b4189c454adbfb2521e1b606cb8fb9bab8c170e1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12104023.
ill come back to you (feat. Sarcastic Sounds & Rxseboy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c9edafdf3f14d48c72bea8cf99f8602e11046eaac00746b39036eed8260842. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12002275.
snowflake (feat. Jaden & Sarcastic Sounds)
tell me your feelings and i won't tell you mine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c0d0e638e0022b0a103dab667a5014b5c08fb47053d0bbb9c1173973452cc6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12105514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294dd43c36728528ab7ea7fbe691dadcc6d3661688b1fe61c33c9ef840f8ec74. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWT2046911.
Giants - Sarcastic Sounds x Rxseboy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a98b664605ea99aacd16179912413113fcecdcdbc93b0ff32b495a5ecb3ffae. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USUG12003129.
the long way home (feat. Sara Kays & Sarcastic Sounds)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df83f9eca2d752a94e5725fc5a40b23de5b1f22c79a08f4e75411465138cf55. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12101697.
the way that you see me (feat. Ayleen Valentine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422e752a5ab7463f934b2bdf811dc5cd668f9c33b4aaf5ebb2f8d47a8ea83623. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12100536.
Eyes Blue Like The Atlantic, Pt. 2 (feat. Powfu, Alec Benjamin & Rxseboy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70365c7f6404d4eb24e8f6bec1af994aa998759468280ef9116d98f0a47dce53. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USAT22005214.
only in the night (feat. Sarcastic Sounds)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb31a814bf5e2c506f5c47e537d9fe7821ed8095b1ac0ec636eac82487f06898. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12204026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d88589dff81aa8e66bc73161738774617de84e488913aa13f9e246508aadcf. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12004754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4eac6d48e4b4369d860f1d13334db4659387e25e25cf626ae83da5a5f8bd3b6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S1921047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5091af5db37e2f3f6a1552cdcb78c0b08a3670fc65cd9ed7ec18ce427a3442. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL2141616.
hold somebody (feat. powfu & sarcastic sounds)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdd8ac311bb9e231cde65e76c2566c7e0fb67853236d4f65bf61c4a2959b4cf. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEP42008011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdd8ac311bb9e231cde65e76c2566c7e0fb67853236d4f65bf61c4a2959b4cf. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USEP42008011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b6435ac586aa86df7db002196c19f8ee8e0a4fbeb391b546803d9e138bd1a2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12103970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb05ef26e976ac29cc198ff1ceb214f3944aa12f3cdc0cd3a39d3ef285b4f95. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2102997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3deba567c3aeb5a01e767175af3ebaf31fb47069918fb00a59216af0f2bd42b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEN1970801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4656f7abc2d50d3bd5451cf0c03f9353ad0a9d849fd44d4740416991e6502dba. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZAKB1910665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac91ed17f62dcb9d2893dfd4f238377ddf32a990e8e87cf79345d3ee7a089c8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM12104022.